Bagged Waste Sorting With RFID and X-Ray Verification
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Solution Overview
Problem
Current waste treatment plants face inefficiencies in identifying and sorting waste based on organic matter content and user accountability, as existing systems lack the combination of RFID and X-ray scanner technologies for accurate identification and sorting.
Innovation Solution
A system integrating RFID detectors and X-ray scanners to identify users and determine organic matter content, using a height difference for reliable RFID reading and a pivoting paddle for sorting waste into compliant and non-compliant lines, with leachate collectors for liquid management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If RFID technology is used to identify users, then user identification capability is improved, but the system cannot verify waste composition or sort waste by organic matter content
Solution Approach 1:
The patent combines RFID technology for user identification with X-ray scanner technology for waste composition verification into a single integrated system. The RFID reader identifies the user who deposited the waste bag, while the X-ray scanner simultaneously analyzes the bag contents to verify organic matter content, enabling both functions to work together rather than separately
2Measurement precision
If X-ray scanners are used to identify waste composition, then waste verification capability is improved, but user identification capability is not provided
Solution Approach 1:
The system merges the X-ray scanner for waste composition analysis with the RFID reader for user identification. The X-ray scanner accurately determines organic matter content in the waste bag, while the RFID reader simultaneously captures user identification data, ensuring both measurement precision and information retention are achieved together
3Productivity
If waste is sorted into compliant and non-compliant streams, then treatment efficiency is improved, but the system lacks user accountability to enforce proper sorting at source
Solution Approach 1:
The system implements feedback by identifying users through RFID technology and verifying their waste composition through X-ray scanning. This creates accountability where users can be tracked and held responsible for proper waste sorting at the source, encouraging compliant behavior while enabling efficient downstream treatment of verified compliant waste streams
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate user identification and efficient sorting of waste into compliant and non-compliant streams, optimizing treatment processes and facilitating 'KM0' recovery, while allowing for user accountability and differentiated waste fees.
Implementation Method 1
RFID (radio frequency identification) technology which allows remote data to be identified, stored, and transmitted using radio frequencies
Implementation Method 2
X-ray scanners are known in the food industry for identifying foreign bodies
Data Source
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Figure 3
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AI summary
The present invention relates to a system for the verification and sorting of the contents of bagged waste which is provided with an unloading area, a belt with an alignment funnel for aligning the bagged waste, an RFID detector, an X-ray scanner, a pivoting paddle, a compliant waste treatment line, a non-compliant waste treatment line, and leachate collectors. Therefore, the end of the belt with a funnel is arranged 0.1 m above the conveyance means to cause the downward displacement of the waste, such that the RFID detector performs the reading of RFID transmitters in the downward displacement of each waste; and the X-ray scanner determines the percentage of organic matter, such that the pivoting paddle is operated by the control unit based on the percentage of organic matter in order to send it selectively to the compliant or non-compliant waste treatment line.